Mathematics A function between metric spaces which preserves distances, such as a rotation or translation in a plane.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "isometry" in a sentence
"The metric has time dependent metric elements, which means there is no Killing isometry which defines energy conservation as a symmetry of the spacetime."
"Temperature-mediated transitions between isometry and allometry in a colonial, modular invertebarte."
"With a few [extremely non-generic] exceptions, namely the ones with maximal isometry groups, one can say definitely whether they are expanding or not."